Whenever you attack, if it's the first combat phase of the turn, untap all attacking creatures. They gain first strike until end of turn. After this phase, there is an additional combat phase. Choose a Background (You can have a Background as a second commander.)

If a Giant source you control would deal damage to a permanent or player, it deals double that damage to that permanent or player instead.

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for {1} or one mana of that creature's color.) If a source you control would deal damage to a permanent or player, it deals triple that damage instead.

If a creature you control would deal damage to a permanent or player, it deals double that damage instead.

Whenever a commander you control deals combat damage to an opponent, it deals that much damage to each other opponent. Partner (You can have two commanders if both have partner.)

Whenever equipped creature attacks, it deals damage equal to its power to the player or planeswalker it's attacking. Equip {3}

As this creature enters, choose a player. If a source would deal damage to the chosen player or a permanent they control, it deals double that damage instead.

Whenever Delina attacks, choose target creature you control, then roll a d20. 1—14 | Create a tapped and attacking token that's a copy of that creature, except it's not legendary and it has "At end of combat, exile this token." 15—20 | Create one of those tokens. You may roll again.

First strike (This creature deals combat damage before creatures without first strike.) Reach (This creature can block creatures with flying.) At the beginning of combat on your turn, put X +1/+1 counters on another target creature you control, where X is Halana and Alena's power. That creature gains haste until end of turn.

Whenever you attack, scry 2, then you may reveal the top card of your library. If it's a creature card, put it onto the battlefield tapped and attacking. Until your next turn, it gains trample if you control a Dwarf and hexproof if you control an Elf.

Whenever Etali attacks, exile the top card of each player's library, then you may cast any number of spells from among those cards without paying their mana costs.

When this enchantment enters, if you control a creature with power 4 or greater, draw a card. Creatures you control have trample. (Each of those creatures can deal excess combat damage to the player or planeswalker it's attacking.) Whenever a creature you control with power 4 or greater enters, draw a card.

Mama's Coming — Whenever this creature attacks a player who controls eight or more lands, look at the top eight cards of your library. You may put a creature card from among them onto the battlefield tapped and attacking that player. Put the rest on the bottom of your library in a random order.

{3}{R}{R}: Untap all creatures you control. After this main phase, there is an additional combat phase followed by an additional main phase. Activate only as a sorcery.

Whenever Anzrag becomes blocked, untap each creature you control. After this phase, there is an additional combat phase. {3}{R}{R}{G}{G}: Anzrag must be blocked each combat this turn if able.

Spree (Choose one or more additional costs.) + {2}{R} — Untap all creatures you control. If it's your combat phase, there is an additional combat phase after this phase. + {2} — Creatures you control get +1/+0 and gain first strike until end of turn. + {R} — Choose target opponent. Whenever a creature you control deals combat damage to that player this turn, create a tapped Treasure token.

Flying, haste Whenever this creature attacks, you may pay {5}{R}{R}. If you do, untap all attacking creatures and after this phase, there is an additional combat phase.

Whenever this creature deals combat damage to a player, untap each creature you control. After this phase, there is an additional combat phase. This creature can't attack a player it has already attacked this turn.

Untap all creatures that attacked this turn. After this main phase, there is an additional combat phase followed by an additional main phase.

This land enters tapped. When this land enters, sacrifice it unless you pay {1}. {T}: Add one mana of any color.

({T}: Add {R} or {G}.) This land enters tapped unless you control two or more basic lands.

This land enters tapped unless you control two or fewer other lands. {T}: Add {R} or {G}.

({T}: Add {G}.)

As this land enters, you may reveal a Mountain or Forest card from your hand. If you don't, this land enters tapped. {T}: Add {R} or {G}.

This land enters tapped. {T}: Add {R} or {G}.

{T}: Add {C}. {X}{R}{G}, {T}: Target creature gets +X/+0 and gains trample until end of turn.

{1}, {T}: Add {R}{G}.

({T}: Add {R}.)

This land enters tapped unless you control two or more other lands. {T}: Add {R} or {G}.

{T}: Add {C}. {4}, {T}: Target creature can't be blocked this turn.

This land enters tapped. When this land enters, you gain 1 life. {T}: Add {R} or {G}.

({T}: Add {R} or {G}.) This land enters tapped. Cycling {2} ({2}, Discard this card: Draw a card.)

This land enters tapped unless you have two or more opponents. {T}: Add {R} or {G}.

Prevent all combat damage that would be dealt to attacking creatures you control.

Permanents you control gain hexproof and indestructible until end of turn.

Equipped creature has haste and shroud. (It can't be the target of spells or abilities.) Equip {0}

At the beginning of each combat, double the power and toughness of each creature you control until end of turn.

Indestructible As long as your devotion to red and green is less than seven, Xenagos isn't a creature. At the beginning of combat on your turn, another target creature you control gains haste and gets +X/+X until end of turn, where X is that creature's power.

{T}: Add one mana of any color in your commander's color identity.

Enchant creature Enchanted creature gets +2/+2 and has "Whenever this creature attacks, untap all lands you control." Umbra armor (If enchanted creature would be destroyed, instead remove all damage from it and destroy this Aura.)

Flying {T}: Add one mana of any color.

{T}: Add {C}. {T}: Add one mana of any color. Spend this mana only to cast a legendary spell, and that spell can't be countered.

At the beginning of your upkeep, put two descent counters on this enchantment. Then each player creates X Treasure tokens and this enchantment deals X damage to each player, where X is the number of descent counters on this enchantment.

Sacrifice a land. Search your library for up to two basic land cards, put them onto the battlefield tapped, then shuffle. If you control a creature with power 4 or greater, instead search your library for up to three basic land cards, put them onto the battlefield tapped, then shuffle.

{T}: Add {G}. Ferocious — {T}: Add {G}{G}{G}{G}. Activate only if you control a creature with power 4 or greater. Eternalize {2}{G}{G} ({2}{G}{G}, Exile this card from your graveyard: Create a token that's a copy of it, except it's a 4/4 black Zombie Snake Druid with no mana cost. Eternalize only as a sorcery.)

Search your library for a Plains, Island, Swamp, or Mountain card, put it onto the battlefield tapped, then shuffle.

Each spell you cast that's red or green costs {1} less to cast.

Creature spells you cast with power 4 or greater cost {2} less to cast. Whenever Goreclaw attacks, each creature you control with power 4 or greater gets +1/+1 and gains trample until end of turn.

Haste Whenever one or more creatures you control attack, add that much mana in any combination of {R} and/or {G}. Until end of turn, you don't lose this mana as steps and phases end.

{1}, {T}: Add {R}{G}.

Whenever a player taps a land for mana, that player adds one mana of any type that land produced.

Menace Whenever one or more creatures you control deal combat damage to a player, create a Treasure token. Sacrifice a Treasure: Exile the top card of your library. You may play that card this turn.

Haste (This creature can attack and {T} as soon as it comes under your control.) Whenever Ruby attacks while you control a creature with power 4 or greater, Ruby gets +2/+2 until end of turn. {T}: Add {R} or {G}.

Flying Whenever this creature attacks, add {R}{R}{R}{G}{G}{G}. Until end of turn, you don't lose this mana as steps and phases end.

{T}: You may put a land card from your hand onto the battlefield.

{T}: Add {C}{C}.

{T}: Add {C}. {T}: Add {R} or {G}. This artifact deals 1 damage to you.

This spell costs {1} less to cast for each creature on the battlefield. Blasphemous Act deals 13 damage to each creature.

Destroy target artifact, target creature, target enchantment, and target land. (You can't cast this spell unless you have legal choices for all its targets.)

Split second (As long as this spell is on the stack, players can't cast spells or activate abilities that aren't mana abilities.) Destroy target artifact or enchantment.